
import pygame
from pygame.sprite import Group

from settings import Settings
from ship import Ship
import game_functions as gf
from game_stats import GameStats
from button import Button
from scoreboard import Scoreboard


def run_gme():
    # 初始化游戏并创建一个屏幕对象
    pygame.init()
    ai_settings = Settings()

    screen = pygame.display.set_mode((ai_settings.screen_width,ai_settings.screen_height)) #screen 屏幕
    pygame.display.set_caption("Alien Invasion")

    # 创建一艘飞船
    ship = Ship(ai_settings,screen)
    # 创建一个用于子弹的编组
    bullets = Group()
    aliens = Group()

    # 创建外星人群
    gf.create_fleet(ai_settings,screen,ship,aliens)
    
    #创建一个用于存储游戏统计数据的实例，并创建记分牌
    stats = GameStats(ai_settings)
    scoreboard = Scoreboard(ai_settings,screen,stats)

    #创建Play按钮
    play_button = Button(ai_settings,screen,"Play")

    # 开始游戏的主循环
    while True:

        # 监视键盘和鼠标事件
        gf.check_events(ai_settings,screen,stats,scoreboard,play_button,ship,aliens,bullets)

        if stats.game_active :
            #移动飞船
            ship.update()
            
            #更新子弹
            gf.update_bullets(ai_settings,screen,stats,scoreboard,ship,aliens,bullets)

            # 更新外星人
            gf.update_aliens(ai_settings,screen,stats,scoreboard,ship,aliens,bullets)

                
        # 绘制屏幕
        gf.update_screen(ai_settings,screen,stats,scoreboard,ship,aliens,bullets,play_button)
        
run_gme()        

